6415249 has 2 divisors, whose sum is σ = 6415250. Its totient is φ = 6415248.

The previous prime is 6415243. The next prime is 6415271. The reversal of 6415249 is 9425146.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6411024 + 4225 = 2532^2 + 65^2 .

It is a cyclic number.

It is not a de Polignac number, because 6415249 - 2⁷ = 6415121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6415249.

It is not a weakly prime, because it can be changed into another prime (6415243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3207624 + 3207625.

It is an arithmetic number, because the mean of its divisors is an integer number (3207625).

Almost surely, 2^6415249 is an apocalyptic number.

It is an amenable number.

6415249 is a deficient number, since it is larger than the sum of its proper divisors (1).

6415249 is an equidigital number, since it uses as much as digits as its factorization.

6415249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 31.

The square root of 6415249 is about 2532.8341832816. The cubic root of 6415249 is about 185.8108938611.

The spelling of 6415249 in words is "six million, four hundred fifteen thousand, two hundred forty-nine".